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Long-term toxicity to aquatic invertebrates

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Description of key information

The substance is with high probability not chronically harmful to aquatic invertebrates.

No long-term effects occurred on Daphnia magna (OECD 211) in the range of water solubility; NOEL (21d) >= 2 mg/L (based on the Loading rate of a WAF) 

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Additional information

The long-term toxicity on aquatic invertebrates was investigated with the waterflea Daphnia magna, in a GLP guideline study according to OECD 211 [BMG, 2013].  Since the test item is a substance that is only partially soluble, the test solution was prepared as water accommodated fraction (WAF), with a loading rate of 2 mg/L. In all analytically control measurements the test concentration was below the quantification limit of 5µg/L.

The first appearance of living offspring was observed between day 9 and 12 at the loading rate of 2.0 mg/L and between day 8 and 12 in the blank control. No effects on parental daphnids and on the offspring were determined during the 21 days test duration. Therefore, the no observed effect loading (NOEL) was >= 2.0 mg/L.